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14.2 Community Interactions
14.2 Community Interactions

... • Competition: ecological relationship in which two organisms attempt to obtain the same resource. • Predation: process by which one organism hunts and kills another organism for food. • Symbiosis: ecological relationship between members of at least two different species that live in direct contact ...
Ch. 13 and 14 - ltcconline.net
Ch. 13 and 14 - ltcconline.net

... Intro - A.G. Tansley did a classic experiment in competition. He grew two different species of the same genus (Gallium bedstraw) together on different soils. He found that each species outcompeted the other on soils where it is naturally found, even though each alone was capable of growth on both so ...
Population Changes – Exponential and Logistic Growth
Population Changes – Exponential and Logistic Growth

...  Explain population growth curves in terms of numbers and rates. o S and J population curves describe a generalized response of populations to a particular set of conditions. o Limiting factors will slow population growth as it approaches the carrying capacity of the system.  Interpret graphical r ...
Ch. 52: Population Ecology
Ch. 52: Population Ecology

... Give an example of an organism for each type: Type I: ...
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В 2. Community Processes: Species Interactions and Succession в

... energy used by, another organism (the host), usually by living on or in the host. • The parasite benefits and the host is harmed but not immediately killed ...
Robert Treat Paine
Robert Treat Paine

... dominated by descriptions of patterns in nature and assertions that these patterns were determined by physiological tolerances, energy flows through ecosystems or competition among similar species. Robert Treat Paine changed the field’s course with a simple experiment. He removed ochre starfish (Pis ...
AP BIOLOGY SUMMER ASSIGNMENT Copy notes from webpage
AP BIOLOGY SUMMER ASSIGNMENT Copy notes from webpage

... 4. Every morning at the same time, John went into the den to feed his new tropical fish. After a few weeks, he noticed that the fish swam to the top of the tank when he entered the room. This is an example of _____. a. Cognition b. Imprinting c. classical conditioning d. operant conditioning 5. One ...
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Population Dynamics and Regulation
Population Dynamics and Regulation

... By the second half of the twentieth century, the concept of K- and r-selected species was used extensively and successfully to study populations. The concept relates not only reproductive strategies, but also to a species' habitat and behavior, especially in the way that they obtain resources and ca ...
Chapter 8: Community Ecology
Chapter 8: Community Ecology

... Iowa: whitetail deer, squirrel, bass, etc. • Non-native: AKA invasive or alien. Brought into an area intentionally or accidentally. Can often overtake native species. Asian beetle, water milfoil, zebra mussel, etc. • Indicator: species that will be affected first by environmental change. Trout (temp ...
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climax

... 1- B- volcanic rock-lichen-mosses-sea grasses In primary succession, an ecosystem must be created from scratch. The lichens and mosses in this example, erode the rock and create soil that the seagrasses can later grow in. Shrubs and coconut trees would not appear until much later. ...
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Community Development

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3. Community Interactions New1

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... One particular factor is the sex ratio of a population. For humans, the (secondary/primary) sex ratio is 50:50 to indicate the number of (newborn/adult) girls to guys. The (secondary/primary) sex ratio is not 50:50 due to many factors affecting the (newborn/adult) population. 25. Another factor of d ...
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Population Ecology

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Biodiversity
Biodiversity

... Biological diversity is the variety and variability among living organisms and the ecological complexes in which they occur…For biological diversity, these items are organized at many levels, ranging from complete ecosystems to the chemical structures that are the molecular basis of ...
The Great Bean Hunt
The Great Bean Hunt

... During the hunting period students will try and scoop 2000 various beans onto their utensil and the place them into a cup. ...
Ecology Review Answers 87KB Jun 08 2015 10:41:25 AM
Ecology Review Answers 87KB Jun 08 2015 10:41:25 AM

... Habitat fragmentation is the alteration of small areas within a large region, creating a patchwork of altered and original habitats. For example: Southern-Ontario’s forests were fragmented for farms, roads, suburs, and cities. 21. Discuss the impact of global warming on the Earth’s temperature. Glob ...
NON-NATIVE SPECIES - Mrs. Simmons` Biology
NON-NATIVE SPECIES - Mrs. Simmons` Biology

... B. Only primary succession begins in a previously inhabited area. C. Only secondary succession begins with larger trees and bushes. D. Only primary succession begins with pioneer organisms such as lichens. ...
conservation
conservation

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RATCLIFFE CRITERIA
RATCLIFFE CRITERIA

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Biodiversity

... • Introduced as ornamental plant around the world • Now in 50 countries on 5 continents including US • In California it replaced the native pennywort (Hydrocotyle umbellata) which occupies a similar habitat, leading to a marked decrease in invertebrate ...
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Theoretical ecology



Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.
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